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Asked: 2026-06-15T20:30:22+00:00

I created a primary key to be autoincrement. I added two rows: ID=1, ID=2

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I created a primary key to be autoincrement.

  • I added two rows: ID=1, ID=2
  • I deleted these two rows.
  • I added a new row, but the new row’s ID was: ID=3

How can I reset or restart the autoincrement to 1?

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1 Answer

  1. Editorial Team

    If you use the DBCC CHECKIDENT command:

     DBCC CHECKIDENT ("YourTableNameHere", RESEED, 1);

    But use with CAUTION! – this will just reset the IDENTITY to 1 – so your next inserts will get values 1, then 2, and then 3 –> and you’ll have a clash with your pre-existing value of 3 here!

    IDENTITY just dishes out numbers in consecutive order – it does NOT in any way make sure there are no conflicts! If you already have values – do not reseed back to a lower value!

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